Philips TP3281C manuels

Philips TP3281C Manuel de service (219 pages)

marque: Philips | Catégorie: Téléviseurs et moniteurs | Taille: 7.62 MB |

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Table des matières

SERVICE MANUAL

1

TABLE OF CONTENTS

3

Contents

4

LIST OF FIGURES

6

LIST OF TABLES

8

SECTION 1: INTRODUCTION

9

1.4 RELATED DOCUMENTS

10

2. ROUTINE MAINTENANCE

11

2.3 BATTERIES

12

2.4 ENVIRONMENTAL PROTECTION

12

3. PERFORMANCE VERIFICATION

13

3.3 PERFORMANCE TESTS

14

3.3.1 Battery Charge

14

3.3.3 Power-On Self-Test

15

3.3.4.1 SpO2 Testing

16

2 frame

17

2% and HEART RATE displays

17

2 Pulse Rate

19

3.3.4.4.2 Pneumatic Leakage

23

3.3.4.4.3 Inflation Rate

24

3.3.4.4.4 Deflation Rate

25

3.3.4.4.5 Over-pressure

26

3.3.4.6 General Operation

27

3.4 SAFETY TESTS

29

3.4.2 Electrical Leakage

29

2 and temperature patient

31

4.1 Introduction

35

4.2 Power-up Defaults Menu

35

4.3 Diagnostic Mode

35

4.1 INTRODUCTION

35

4.2 POWER-UP DEFAULTS MENU

35

4.3.1 Error Codes

38

4.3.2 System Information

38

2 S1 S018 SpO2 S2 S010

39

4.3.4 NIPB Test

40

SECTION 5: TROUBLESHOOTING

41

Section 5: Troubleshooting

42

SECTION 6: DISASSEMBLY GUIDE

51

Section 6: Disassembly Guide

52

SpO2 module

57

Backlight

59

Display back

59

Battery housing

62

Screws fastening

63

Fuse F1 and F2

64

Screws fastening power

64

SECTION 7: SPARE PARTS

67

Section 7: Spare Parts

68

8. PACKING FOR SHIPMENT

81

SECTION 9: SPECIFICATIONS

83

9.3 ELECTRICAL

84

9.4 ENVIRONMENTAL

84

9.5 MEASURING PARAMETERS

85

Section 9: Specifications

86

9.6 TRENDS

88

2 Processing

89

10.2.1 Isolated Front End

90

10.2.2 NIBP Front End

90

10.2.3 Power System

90

10.2.5 Display

91

10.2.7 Nellcor Knob

92

10.2.8 RS-232 I/O

92

10.2.9 Defib Synch Pulse

92

10.2.10 Speaker

92

10.2.11 Recorder

93

10.3 ECG PROCESSING

93

10.4 RESPIRATION PROCESSING

93

10.5 NIBP PROCESSING

94

10.6 SPO2 PROCESSING

94

10.7 TEMPERATURE PROCESSING

94

11.2 OVERVIEW

98

11.3 INTERFACE CIRCUIT

100

11.4 ECG

101

11.4.2 R-wave Detector

102

11.4.3 Pacemaker Detector

102

11.5 RESPIRATORY CIRCUIT

103

11.6 TEMPERATURE CIRCUIT

103

11.7.1 Linear optocoupler

104

11.7.2 Digital Optocouplers

104

11.7 OPTOCOUPLERS

104

11.10 ISOLATED POWER SUPPLY

108

11.11 SPO2 BOARD

108

11.12 ISOLATION

108

12.1 NIBP System Overview

109

12.2 The Pneumatic Assembly

109

12.3 NIBP Hardware

109

12.1 NIBP SYSTEM OVERVIEW

109

12.2 THE PNEUMATIC ASSEMBLY

111

12.3 NIBP HARDWARE

111

12.3.1 Pressure Transducers

112

12.3.3 Power Supplies

112

12.3.6 NIBP Pump Control

113

THEORY OF OPERATION

115

13.2.1 Voltages

116

13.4.2 Recorder Power

120

2 INTERFACE

122

13.7 CPU CONNECTIONS

123

13.7.1 Port 1 Signals

123

13.7.2 Port 2 Bits

123

13.7.3 Port 3 Bits

124

13.7.4 Chip Select Unit

124

13.7.5 Timer Unit

124

13.7.6 Interrupts

124

W/R,BLE#,BHE#,CSO:6#

126

UCS#,D/C#,M/IO,A1:25

126

LBA#,READY#

126

13.8.2 DRAM Timing

127

Figure 13-8: DRAM Timing

127

13.8.3 DRAM FPGA Circuits

128

13.9 Flash Control

128

13.9.1 Executable flash

128

Figure 13-10: Flash Cycle

129

Figure 13-11: Write Pulse

129

13.9.3 Trend Flash

130

13.10 LCD Display

130

13.10.1 LCD Control

131

13.10.2 LCD Display RAM

132

13.11 Real-time Clock (RTC)

132

Figure 13-12: DS1693 Timing

132

13.12 DUART Control

133

Figure 13-14: DUART Control

133

13.13 KNOB INTERFACE CONTROL

133

13.14 SWITCH CONTROL

134

13.16.1 Block Diagram

138

OPERATION

141

14.2.1 Voltages

143

14.3 CPU CONNECTIONS

145

14.3.1 PORT 1 SIGNALS

145

14.3.2 PORT 2 BITS

145

14.3.3 PORT 3 BITS

145

14.4 LNA 386EX CONNECTIONS

147

14.5 CPU TIMING SIGNALS

147

14.5.1 CPU SIGNALS

148

14.6 DRAM CONTROL

148

14.6.1 DRAM SIGNALS

148

14.6.1.1 DRAM TIMING

149

Figure 14-4: DRAM Timing

149

14.6.2 DRAM FPGA CIRCUITS

150

14.7 FLASH CONTROL

150

14.7.1 EXECUTABLE FLASH

150

14.7.3 TREND FLASH

152

14.8 LCD DISPLAY

152

14.8.1 LCD CONTROL

152

14.8.2 LCD DISPLAY RAM

154

14.8.4 LCD CONTRAST CIRCUIT

155

14.8.5 BACKLIGHT CIRCUIT

155

14.9 REAL TIME CLOCK (RTC)

155

Figure 14-8: DS1693 Timing

155

14.10 DUART CONTROL

156

14.11 KNOB INTERFACE CONTROL

157

14.12 PUSH BUTTON CONTROL

157

14.14 SPEAKER

160

14.15.1 NIBP System Overview

161

14.15.1.2 NIBP Hardware

162

14.15.1.2.3 Power Supplies

163

14.16 FRONT END INTERFACE

164

14.17 DIGITAL SCHEMATIC

166

14.17.2 DRAM CONTROL CIRCUIT

167

14.17.3 RAS/ CONTROL CIRCUIT

168

14.17.3.4 WRITE SIGNAL

169

14.17.3.5 ENDTABFR SIGNAL

169

14.17.3.3 CASADREN SIGNAL

169

14.17.7 REGISTER 30E

170

14.17.8 FLASH CHIP ENABLE

170

14.17.11 READY/ CIRCUIT

171

14.17.14 RTC CONTROL

172

14.17.15 DUART CONTROL

172

14.17.16 FREQUENCY GENERATOR

173

14.17.17 LCD CONTROL

173

14.17.21.5 FE_CLK_EN BIT

176

14.17.21.6 PROG_EN BIT

176

14.17.21.7 ADCS_RESET BIT

176

14.17.23 SYNC_ALARM CIRCUIT

177

14.17.24 FE_CLK_100KHZ

177

14.18 BLOCK DIAGRAM

177

Section 15: Drawings

182

15.2.1 Overview

183

15.2.2 Flyback Principles

183

15.2.4 Controller

184

15.2.5 Power Devices

184

15.3 BATTERY CHARGER

185

15.3.1 Overview

185

15.4.1 Controller

185

15.4.3 Drive Translator

186

15.5 POWER DEVICES

186

15.6 MISCELLANEOUS CONTROL

187

15.7 SYSTEM POWER SUPPLY

187

15.7.1 Voltage Doubler

187

15.7.2 Controller

187

15.7.3 Power Devices

188

15.7.4 Control Circuits

188

15.9.1 ON/OFF Control

189

15.9.2 Early Warning

189

15.9.3 SYNC Pulses

189

15.10 ALARM SECTION

190

15.10.1 Alarm Control

190

15.10.2 Alarm Sounder

190

15.11 NIBP PUMP CONTROL

190

15.12 SAFETY DEVICES

190

15.12.1 Watchdog Shutoff

191

16. MP-205 SERVICE MANUAL

193

16.7 Preamp

195

16.10 LED Driver

196

16.10.1 References

196

16.11 Reset Schmitt Trigger

196

16.13 Input Filter

196

16.18.4 SRC-2 Settings

201

16.18.5 Trace Descriptions

201

16.18.6 SRC-2 Settings

202

16.18.7 Trace Descriptions

202

16.18.8 SRC-2 Settings

203

16.18.9 Trace Descriptions

203

Rate: 112

204

Light: High2

204

Modulation: HIGH

204

Remote/Local: DC RCAL 63

204

16.18.11 SRC-2 Settings

205

16.19 PACKING FOR SHIPMENT

205

16.19.1 General Instructions

205

16.20.3 Sensors

207

SECTION 17: DRAWINGS

209

Section 17: Drawings

211

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